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,iuted @Quintet .TOI-IN M. LEMON, OF POLK CITY, IOWA Letters Patent No. 91,351, datedJune 15, 1869.

MPROVEMENT IN CONVEYER FLIGHT."

The vSchedule vx'efexred to in these Letter: Patent. and makzg part of the same.

To all whom 'it concern:

Be itknown vthat I, Jorgnsliglipiwompffoik City,

A-in'the"co1ntyof Polk, r'and State -of Iowa, have invented a new and useful Improvement in Oonveyer- Flight; and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable others skilled'in the art to make and use the same, reference being had to the accompanying\ drawings, forming part of this specification.

rlhis invention relates to anew and useful improvement in 'machinery for'moving or conveying Hour or grain, -in a horizontal 4`distance, in mills and warehouses.

The usual conveyer is formed by attaching dat pieces of wood, called ights,? to a'shaft. which revolves Within the conveyer-box, so that they form a spiral rib around the shaft. 'lhe ends of these pieces of wood run near the circular bottom of the box, so that when the shaft is revolvedfthe grain or flour is screwed along from one end to the other of the box, or until it is discharged therefrom.

rlfhese Wooden ights have a tenon at the other end, which is inserted in a hole in the side of the shaft, one after the other, forming a spiral rib or imperfect screw-thread around the shaft, as before stated. Frequently the wood tenons shrink, and the flights become loosened, and occasion thereby much trouble and sometimes serious damage.

My invention consists in forming'these nights of sheet-metal, as will be hereinafter more fully described.

In`the accompanying plate of drawings- Figure l represents an end view of the ilight it being the/end which is attached to the shaft.

Figure 2 is a view of the side, showing the length or projection of the flight from the shaft.

Similar letters of reference indicate corresponding parts. v

A is the zilight.

It will be noticed that the flight is made from a single piece of sheetmetal, one end, B, being cnt triangular in form, and turned at right angles with the blade C.

The sides of the blade O are turned or folded over, as seen at DVD; the extreme ends of these sides E being also turned at right angles with C, and lapped over each other, .as seen at F.

The parts B and F extend each way from the blade, and are fastened to the shaft by the screws g g, thus giving the flight a firm support upon each side.

The formation is such that it is very stiff and rigid when fastened to the shaft; much cheaper, and much less likely to get loose than the common wooden Hight I claim as new, and desire to secure by Letters Patent- The flight A, constructed as described, to be applied to a conveyer-shaft, for the purposes set forth.

JOHN M. LEMON.

Witnesses z WILLIAM DoLPBIN, J. B. KELLIsoN. 

